Control for lasting machine



July 31, 19 62 J. 5. KAMBORIAN ET AL 3,046,578

CONTROL FOR LASTING MACHINE 4 Sheets-Sheet 1 Filed March 8, 1960 INVENTORS (7160/ IIamrz'a/z/ Var MM J. s. KAMBORIAN ET AL 3,046,578

CONTROL FOR LASTING MACHINE 4 Sheets-Sheet 2 July 31, 1962 Filed March 8, 1960 VII/II Emmi INVENTORS Jawfi .jilawzarzm July 31, 1962 J. 5. KAMBORIAN ET AL CONTROL FOR LASTING MACHINE Filed March 8, 1960 4 Sheets-Sheet 3 All? INVENTORS laiizarz'azz r Var/lie? r yWQ/ZW/ July 31, 1962 J. s. KAMBORIAN ETAL 3,046,578

CONTROL FOR LASTING MACHINE 4 Sheets-Sheet 4 Filed Marqh 8, 1960 Varmg'p'er Q 5 I 6 ,a-

if! J United States Patent 3,046,578 CONTROL FOR LASTING MACHXNE Jacob S. Karnborian, West Newton, Mass. International Shoe Machine Corp, 1380 Soldiers Field Road, Brighton, Mass), and Karl F. Vornberger, Somerville, Mass; said Vornherger assignor to said Kamborian Filed Mar. 8, 1960, Ser. No. 13,607 26 Claims. (Cl. 1212.4)

This invention relates to lasting machines of the kind shown in the Weisz patent, No. 2,888,693, June 2, 1959, and more especially to improvements in control of ma chines of this kind.

In the aforesaid patent, the wipers and the shoe support are arranged to be moved relatively to each other, the wipers in a horizontal plane, forwardly and rearwardly, and the support in a vertical plane, upwardly and downwardly. A fluid pressure motor is operably connected to the wipers and another to the shoe support and there are valves controlled by a common handle, which is movable horizontally, forwardly and rearwardly, and rotatable about its longitudinal axis to move the valves in directions to produce forward and rearward movement of the wipers and upward and downward movement of the support. As shown in that patent, after the lasting operation has been performed to the satisfaction of the operator, the support is first lowered by rotating the handle counterclockwise, the wipers are moved rearwardly by pushing the handle rearwardly to permit removing the shoe, and then the handle is rotated clockwise to re-elevate the support, so that it will be ready for the next operation.

The principal objects of this invention are to provide means for automatically releasing the finished shoe and restoring the wipers and support to their initial position in readiness for the next operation. Other objects are to provide simple and yet effective means for restoring the machine to its initial position without interfering with the normal operation of the wipers and support in carrying out the lasting operation. Still another object is to provide means for applying a bedding pressure to the bottom following lasting, which is higher than normal lasting pressure.

As herein illustrated, this is accomplished by an actuator mounted on the control arm which is operable without changing the position of the control arm, to effect movement of a pusher in a direction to move the handle rearwardly, and means carried by the pusher operable to effect movement of the support in a direction to lower the shoe away from the undersides of the Wipers, prior to engagement of the pusher with the handle, thus to initiate downward movement of the support just before the wipers begin to move rearwardly. The means on the pusher is a cam arranged to engage a switch just before the pusher reaches the handle and, by actuation thereof, to shift the valve supplying pressure fluid to the fluid motor which moves the support, in a direction to lower the support and to release the switch as the wipers approach their rearmost positions, to permit the valve to be returned to its initial position. There is a heel pin and fluid motor for tilting the latter in a direction to hold the toe of the shoe against the toe rest, and the aforesaid valve, when actuated to move the pusher rearwardly, simultaneously vents fluid at the rear end of the fluid motor to release the shoe. The means for supplying bedding pressure includes a lever disposed with one end adjacent the handle and the other operably associated with means for controlling movement of a valve, in such fashion as to supply additional pressure to the fluid motor for the support. A cam on the control arm operates the lever and the latter is so located that it effects operation of the valve only when the cam is rotated to its ex- Ice treme upper position. The bedding pressure is automatically terminated by rearward movement of the control arm which removes the cam from engagement with the lever.

The invention will now be described in greater detail with reference to the accompanying drawings wherein:

FIG. 1 is a vertical section through a toe lasting machine, showing the wipers, shoe support and a part of the control;

FIG. 1a is a section of one of the control valves, showing a fluid motor diagrammatically connected thereto;

FIG. 2 is a fragmentary elevation near the butt of the handle, to much larger scale, showing the restoring switch in section;

FIG. 3 is a section taken on the line 3-3 of FIG. 2;

FIG. 4 is an elevation of the pusher and fluid motor, shown in relation to the control handle, the latter being shown at its rearmost position and a position forwardly thereof;

FIG. 4a shows the knee action of the switch arm;

FIG. 5 is an end view of FIG. 4, showing the guide in section;

FIG. 6 is an elevation of'the'heel clamp pin and operating means;

FIG. 7 is a digrammatic layout of that part of the fluid pressure system controlling the movement of the control handle and heel clamp;

FIG. 8 is a diagrammatic layout of that part of the fluid pressure system controlling application of increased bedding pressure;

FIG. 9 is an isometric view of the control handle and associated parts includingthe valve for effecting horizontal movement of the wipers; and

FIG. 10 is a longitudinal section through the flow-control valve of the heel pin operating motor. 5

Referring to FIG. 1, there are wipers 10 and a wiper carrying slide 11 arranged on a frame 12 to move in a horizontal plane forwardly and rearwardly, and a support comprising a toe rest 14 and heel pin 16 mounted on a carriage 17 for movement vertically to raise a shoe into a position to be operated upon by the wipers. The slide 11 is operably connected to a motor 18 and the carriage 17 is operably connected to a motor 20; accordance with the aforesaid patent, there are valves V1 and V2 for controlling the flow of fluid to the motors and a single handle 22 movable forwardly and rearwardly in a horizontal plane and rotatable about its longitudinal axis to produce forward and rearward movement of the wipers and up and down movement of the support. The valve V1 (FIG. 9) is fastened to the underside of a horizontal bracket plate 13 and the latter, in turn, is fastened to the underside of the slide 11 by a vertical bracket plate 15, so that the valve V1 moves forwardly and rearwardly with the slide. A block 13 is secured to the plate 13 and the handle 22 is connected to the block by way of a pivoted arm 23. The arm 23 contains a slot 25 through which projects a pin 21 fastened to a stem 3 at the end of the valve spool 5 of the valve V1 (FIG. la).

The valves are of the balanced type disclosed in the aforesaid patent, so that when force is removed the valve spools will return to their neutral position.

The valve V2 (FIG. 1) is movable with the carriage and rotation of the handle 22, about its axis, operates through a cam 7 and linkage 9 to displace the spool in the valve V2, thereby to supply fluid pressure to one end or the other of the motor 20. A spring 19 on the spool causes it to follow the linkage during counterclockwise rotation of the handle.

The valves V1 and V2, the former being shown in detail in FIG. la, are supplied with pressure fluid from a suitable source by way of a reducing valve R1 by means of which a predetermined low pressure is supplied to the motors l8 and for the lasting operation.

The heel supporting pin 16, herein shown, is movable forwardly, after the last has been placed on it, by a pair of meshing gear sectors 24, 26 (FIG. 6), the latter being rotated by a link 28 connected to a rod 30 protruding from a fluid motor 32. By admitting fluid pressure to the rear end of the fluid motor 32, the last is biased downwardly so as to hold its toe pressed against the toe rest 14. The piston, within the motor, is spring-returned when the fluid pressure is vented.

With a machine, such as just described, after the lasting operation has been performed, to the satisfaction of the operator, the heel actuating motor 32 is first actuated to retract the heel pin 16, then the support, which includes the toe rest and heel pin, is lowered by rotating the handle 22 about its axis, and finally the wipers are moved rearwardly to their rearmost position to permit the shoe to be removed. The support is then moved back up to its upward position by rotation of the handle to make the apparatus ready for the next operation. It is the purpose of this invention to relieve the operator of the necessity of returning the component parts of the machine to their initial position, after each lasting operation, to make the machine ready for the next operation. To this end a pusher 34 (FIGS. 1 and 4) is mounted in a horizontal position on a level with the axis of the handle 22, as shown in FIG. 4, on lugs 3636, at one end of a slide 38, the other end being connected to a protruding end of a piston rod 40 mounted in a cylinder 42. The slide is supported in a guide 44 fastened to a bracket plate 46 bolted to the frame 12. The pusher is shown in its inoperative position in FIG. 4, forwardly of the handle 22, that is, between the handle and the shoe support. As thus situated, the operator can move the handle without interference through the distance a which represents the travel of the handle from its rearmost position, at the left, to its foremost position, at the right. Thus the operator has complete control for effecting forward and rearward movement of the wipers and also for raising and lowering the support. When the Wiping has been performed satisfactorily, the operator admits pressure to the cylinder 42 in a direction to retract the slide 38 and hence to move the pusher 34 rearwardly into engagement with the handle at its forward position at any given time and to push it to its rearwmost position. The end of the pusher is concave so as to conform to the cylindrical surface of the handle, is threaded to permit adjustment and contains a curf to receive a screw driver for effecting adjustment.

Prior to rearward movement of the wipers, for the purpose of preventing the Wipers from scutfing the margin, and perhaps pulling it away from the insole, the support should be lowered. Accordingly, a cam 48 is mounted on the underside of the slide 38 for engagement with a roller 50 at the upper end of a switch arm 52, which is spring-biased. Movement of the cam 48 toward the left (FIG. 4) will actuate the arm 52 to close the switch 54 with which it is associated. The switch in turn energizes a solenoid 56 (FIG. 1), which is connected to the spool of the valve V2 and moves the spool in the valve in a direction to lower the support. As will be seen by reference to FIG. 4, the cam 43 engages the switch arm 52 before the pusher 34 engages the control handle 22, so that lowering of the support takes place just before the wipers are moved rearwardly. The arm 52 is articulated (FIG. 4a) and normally held straight by a spring 53, so as to lie in the path of the cam 48. During the leftto right movement of the cam 48 the upper section of the arm 53 folds clockwise so that the cam 48 passes over the roller 52 without actuating the switch.

As the pusher 34 moves the control handle 22 rearwardly, the cam 48 passes over the switch arm 52, releasing it and thereby de-energizing solenoid 56. This allows the spring 19 to return the spool in the valve V2 into engagement with its linkage 9 in readiness for the next operation.

As previously indicated, it is also desirable to retract the heel lock and so pressure fluid is vented from the rear end of the heel lock motor 32 as the support is lowered to release the last.

Referring to FIG. 7, there are shown the piston 42, with a portion of its rod 40 protruding from it, the heel lock motor 32, with a portion of its rod 30, and two valves V3 and V4. Valves V3 and V4 are connected to each other by a pipe 64, and by branch pipes 60 and 62 to a line 58 which, in turn, is connected to the source by way of a regulator R set to supply a higher pressure than that supplied to the motors 18 and 20. Pipes 66, 66a and 68 connect the valve V4 with opposite ends of the cylinder 42 and a pipe 66b connects the pipe 66 with the rear end of the heel motor 32. A flow control valve 69 (FIGS. 7 and 10) is placed in the line 66b to retard venting of the cylinder 32, so as to prevent the last from being swung upwardly against the underside of the wipers as they are being retracted. As illustrated (FIG. 10), the valve 69 contains a ball 71 which allows free flow in one direction, but checks flow in the opposite direction and an adjustable needle 73 which permits flow in both direc tions.

The three-Way valve V3 is solenoid-controlled and the solenoid is energized by a rotatable collar 70 (FIGS. 2 and 3), mounted on the handle 22. The collar 70 is supported for rotation on the handle by a circular bushing 72 fastened to the handle and is normally held in a fixed position by a spring-pressed detent 74 engaged within one of a pair of notches 76 in the inside of the collar. The bushing has an opening or recess 78 to make room for a microswitch 30, which is fastened to the bushing. The microswitch has a spring arm 82 carrying a roller 84 which bears against a cam surface 86 inside the collar. By rotating the collar on the handle in a counterclockwise direction, the switch may be closed. Closing the switch energises the coil of the three-way valve V3, permitting air from the source 53 to flow through the pipe lines 60 and 64 to the upper end of the spring-pressed spool 33 situated in the four-way valve V4 (FIG. 7), the spool 88 being normally held upwardly by the spring 96. Depression of the spool 88 permits air from the line 53 to flow through the pipe 62, the four-way valve V4 and the pipe 66 to the rear end of the cylinder 42, and to flow through the pipe 66b, to the rear end of the motor 32, to move the pusher forwardly to an outof-the-way position and to move the heel locking pin into locking position. Air is vented from the forward end of the cylinder 42 through pipe 68 and port 41. Movement of the collar in the opposite direction to open the switch de-energizes the solenoid of valve V3, so that air is cut off from valve V4, thus allowing the spring 90 to return the spool 88 to its upper position. Air then flows through pipe 62, valve V4 and pipe 68 to the forward end of the cylinder 42, so as to move the piston in the cylinder 42 rearwardly. The air at the rear end of the cylinder 42 and the rear end of the motor 32 is vented through pipes 66a, 66b and 66 and port 43. As previously indicated, when the slide 38 begins to move rearwardly it engages the switch arm 52, so as to energize the coil 56 to move the spool of valve V2 in a direction to lower the support and after it passes the switch arm 52 the spool V2 is moved upwardly by the spring 19 into engagement with the linkage 9. A manually operable two-way shut-off valve 104 may be provided in the line 68.

The foregoing control provides a very simple and effective adjunct to the simplified control of the patented structure, improving the latter by returning the instrumentalities to their inoperative position after the lasting has been accomplished automatically, so as to relieve the operator of this operation. The operator may avail himself of this control or not as he desires since it does not interfere with the normal operation of the machine.

It is also desirable to be able to apply a bedding pressure to the bottom of the last following the wiping operation and thereafter automatically to release the bedding pressure and lower the last, as previously explained, to permit retraction of the wipers. To this end a lever 92 (FIG. 8) is pivotally mounted at 94 on the frame with one end adjacent the cam 7 and its other end adjacent a microswitch 96. The microswitch is so located that its actuating pin 98 will be depressed only when the cam 7 is rotated to its top position so as to tip the arm 92 clockwise and hence to depress the actuating pin. Depression of the actuating pin energizes a solenoid 100 of a two-way valve V5, which supplies the higher pressure from the line 58 (FIG. 7), through a line 102, to the lower end of the motor 20, so that now the support is forced upwardly against the underside of the wipers under the combined pressure supplied to the motor from the source of pressure through regulating valve R1 and valve V2 and from the source through the regulator R and the valve V5. The increased pressure will continue to be applied as long as the lever is held tilted so as to depress the actuating pin of the microswitch. In accordance with the previous description, however, as soon as the collar 70 is rotated, the pusher moves the handle rearwardly, which in turn moves the cam from beneath the lever arm 92, thereby releasing it. Releasing the arm 92 allows the switch 96 to open and this in turn de-energizes solenoid 100. De-energization of solenoid 100' closes the valve V5 thus cutting ofi the high pressure to the motor 20. At about this time, the solenoid 56 is energized, as previously explained, to draw the support down. By placing thelever arm 92 insuch a position that the cam does not engage it until it is rotated to its highest position, the operator has full control for manipulation of the support during wiping at normal pressure, but at any time that he wants to he can apply bedding pressure by rotating the handle in a counterclockwise direction and correspondingly release it by rotating it in a clockwise direction.

In the use of the improved control forming the instant invention, the last having a shoe upper and insole mounted thereon is placed on the heel pin 16. At this time the switch 80 is open. As a result the piston 40 is retracted within the cylinder 42 and the handle 22 is in the rearward dotted line position shown in FIG. 4, having been pushed to that position by the pusher 34. The piston is now retracted within the cylinder 32 so that the toe end of the shoe is not pressed against the toe rest 14-.

The switch 80 is now closed. This causes the piston 40 to be projected from the cylinder 42 to thereby move the pusher 34 to the position shown in FIG. 4, and the piston 30 to be projected from the cylinder 32 to urge the toe of the shoe down upon the toe rest 14. The control handle 22 may now be manipulated in the same manner as shown in Patent No. 2,888,693 to move the wipers and the shoe support, forward and rearward movement of the handle producing a corresponding movement of the wipers and rotational movement of the handle about its longitudinal a ds in one direction or the other producing a corresponding raising or lowering of the shoe support. In accordance with the conventional practice, the shoesupport is moved to a position wherein the upwardly facing surface of the insole is substantially level with the undersurfaces of the wipers. The wipers are then moved forwardly across the shoe bottom to wipe or fold the lasting margin of the upper down against the insole, and at the same time the shoe support is raised to provide pressure between the insole and the advancing wipers. When the wipers have been advanced to their forwardmost position, the handle 22 may be rotated to raise the support to apply a maximum pressure to the wipers. This will bring the cam 7 to the FIG. 8 position shown in solid lines thereby closing the switch 96 to cause increased bedding pressure to be applied between the shoe bottom and the wipers.

The switch 80 is now opened by the operator; This causes the piston 40 to be retracted within the cylinder 42 thereby causing the pusher 34 to push the handle22 leftwardly from the solid line position of FIG. 4 to the dotted line position. The leftward movement of the handle causes the withdrawal of the wipers from over the shoe bottom. Soon after the handle commences its retractive movement, the cam 7 which is mounted on the handle moves out from under the lever 92 thereby causing the switch 96 to open and the application of increased bedding pressure through the line 102 to cease. Prior to the engagement of the pusher 34 with the handle 22, the cam 48 closes the switch 54 to energize the solenoid 56 to lower the spool of the valve V2 to thereby lower the shoe support while switch 54 is closed. After the pusher 34 has commenced to push the handle 22 leftwardly and the wipers have been withdrawn from over the shoe bottom, the cam 48 passes the switch arm 52 of the switch 54 thereby opening the switch and deenergizing the solenoid 56. This enables the spool of the valve V2 to be raised by the spring 19, thereby causing the motor 20 to raise the shoe support until the valve spool is again depressed by the engagement of the valve spool with the linkage 9. The departure of the cam 48 from the switch arm 52 thus allows the shoe support to rise to the position it occupied prior to the closing of the switch 54 by the cam 48. During the aforesaid movements the cam 7 remains in the position shownin solid lines in FIG. 8.

The opening of the switch 80 also enables the spring in the cylinder 32 to retract the piston 30 into the cylinder. The flow control valve 69 delays the retraction sufliciently to enable the wipers to be withdrawn prior to the last being swung upwardly of the toe rest 14.

It thus becomes apparent that the opening of the switch 80 automatically causes the shoe to be lowered followed by a withdrawal of the wipers from over the shoe bottom, and causes the shoe to be reraised and the toe of the shoe to be swung upwardly of the toe rest 14 after the wipers have been withdrawn from over the shoe bottom.

Should it be found desirable to move the shoe support and the wipers after the wipers have completed their lasting operation by manipulating the handle 22 as described in Patent No. 2,888,693, it is only necessary to close the valve 104 when the piston 40 is in its extended position as shown in FIG. 4. The closing of the valve 104 shuts olf the air supply in the pipe 68 so that the opening of the switch 80 will not move the piston 40. The

pusher 34 will thus remain in the out of the way position shown in FIG. 4, and the switch may be closed to urge the shoe against the toe rest at the beginning of the last mg operation and opened to raise the shoe upwardly from the toe rest after the wipers have been withdrawn from over the shoe bottom.

It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes all modifications and equivalents which fall within the scope of the appended claims.

We claim:

1. In a lasting machine, a shoe support and wipers, means mounting the shoe support and wipers for move-l ment relative to each other, power operated means for effecting vertical movement of the shoe support, power operable means for effecting horizontal movement of the wipers, manually operable means for controlling said power operated means thereby to enable the wipers to be moved over the supported shoe and to enable the shoe to be pressed upwardly against the wipers, and separate control means operable, when the shoe has been'pressed against the wipers by the manipulation of said manually operable means, to automatically lower the shoe support and move the wipers away from the shoe support.

v 2. Apparatus according to claim 1, wherein said sepa rate control means operates to raise the shoe support when the wipers have moved a predetermined distance away from the shoe support. 3

3. In a toe lasting machine: a shoe support, for supporting a last having a shoe mounted thereon, comprising a toe rest; wiper means; means for urging the shoe downwardly against the toe rest; first power operated means for effecting forward and rearward movement of the wiper means; second power operated means for effecting movement of the shoe urging means so as to move the shoe toward and away from the toe rest; manually operable means for controlling the first power operated means to enable the wipers to be moved over the shoe; and control means operative to actuate the first and second power operated means to move the wipers away from the shoe support and to move the shoe away from the toe rest independently of any manual manipulation of the manually operable means.

4. A toe lasting machine according to claim 3, wherein there is means for delaying operation of the second power operated means until the wipers have been withdrawn from over the shoe.

5. In a toe lasting machine, a shoe support comprising a toe rest, wipers, means for urging the shoe downwardly against the toe rest, power operated means for effecting vertical movement of the shoe support, power operated means for effecting horizontal movement of the wipers, power operated means for effecting movement of the shoe urging means so as to move the shoe toward and away from the toe rest, manually operable means for controlling the first and second-mentioned power operated means thereby to enable the wipers to be moved over the supported shoe and to enable the shoe to be pressed upwardly against the wipers, and separate control means operative in one position to cause the third-mentioned power operated means to urge the shoe against the shoe support and in another position automatically to lower the shoe support, move the wipers away from the shoe support, and render the shoe urging means ineffective when the wipers are withdrawn from over the shoe.

6. Apparatus according to claim 5, wherein the separate control means raises the shoe support when the wipers are moved a predetermined distance away from the shoe support.

7. Apparatus for lasting the ends of shoes, comprising means mounting a shoe support and wipers for movement relative to each other, fluid motors operable to effect movement of the wipers forwardly and rearwardly in a predetermined plane, and the support upwardly and downwardly in a plane perpendicular to the plane of movement of the wipers, valves for controlling the flow of pressure fluid to the motors, a handle for actuating said valves, the valve controlling flow of pressure fluid to the wiper motor being operable by pushing and pulling the handle, and the valve controlling flow of pressure fluid to the support motor being operable by rotating the handle on its axis, first means operable to move the handle rearwardly without manual manipulation, and second means carried by the handle operable to effect actuation of said first means to move said handle toits rearmost position, and simultaneously to effect operation of the valve controlling flow of pressure fluid to the support motor to cause the motor to lower the support away from the wipers.

8. Apparatus according to claim 7, wherein there is a last having a shoe mounted thereon supported bottomup on the support, and there is means on the handle operable by rotation thereof to supply additional pressure to the support motor to bed the bottom of the shoe against the wipers, said means on the handle being rendered inoperative by retraction of the wipers.

9. Apparatus according to claim 7, wherein there is a last having a shoe mounted thereon supported bottomup on the support, and there is means on the handle operable by rotation when the handle has been advanced to a position in which the wipers overlie the bottom of the shoe to supply additional pressure to the support motor to bed the bottom of the shoe against the wipers, said means on the handle being rendered inoperative by rearward movement of the handle in response to actuation of the first means.

10. In a lasting machine, wipers and a shoe support, means mounting the wipers and support for relative move ment, a first motor and a second motor respectively connected to the wipers and support to effect movement thereof, a first valve for controlling the flow of pressure fluid to the first motor, a second valve for controlling the flow of pressure fluid to the second motor, a handle, said first valve being operable by forward and rearward movement of the handle to advance and retract the wipers, and said second valve being operable by rotation of the handle to raise and lower the support, power operable means for returning the handle from a forward position to its rearmost position, and thereby to retract the wipers, means operable by the last-named means to lower the support prior to rearward movement of the Wipers and then to raise the support to its initial position, and means on the handle operable without manual movement of the handle to effect operation of the power operable means.

11. In a lasting machine, wipers and a shoe support, means mounting the wipers and support for relative movement, a first motor and a second motor respectively connected to the wipers and support to effect movement thereof, a first valve for controlling the flow of pressure fluid to the first motor, a second valve for controlling the flow of pressure fluid to the second motor, a handle, said first valve being operable by forward and rearward movement of the handle to advance and retract the wipers, and said second valve being operable by rotation of the handle to raise and lower the support, power operable means movable rearwardly to return the handle to its rearmost position, from any given position forwardly thereof, a collar on the handle, rotation of which initiates operation of the power operable means, means movable with the power operable means, operable to effect movement of the second valve in a direction to lower the support just before the power operable means engages the handle to move the wipers rearwardly and to effect movement of the second valve in a direction to raise the support when the handle reaches its rearmost position.

12. In a lasting machine, wipers and a shoe support, means mounting the wipers and support for relative movement, a first motor and a second motor respectively connected to the wipers and support to effect movement thereof, a first valve for controlling the flow of pressure fluid to the first motor, a second valve for controlling the flow of pressure fluid to the second motor, a handle, said first valve being operable by forward and rearward movement of the handle to advance and retract the wipers, and said second valve being operable by rotation of the handle to raise and lower the support, a pusher arranged to move rearwardly and, by such movement, to push the handle rearwardly to its rearmost position and to return it to an out-of-the-way position, a third valve for supplying pressure fluid to the pusher, a collar on the handle, movable to place said third valve in a position to move the pusher rearwardly, and a cam on the pusher operable during the initial movement of the pusher to effect movement of the second valve in a direction to lower the support and at the end of its rearward movement to effect movement of the second valve in a direction to raise the support to its initial position.

13. A lasting machine according to claim 12, wherein there is a spring-pressed detent engageable with the collar to hold it in operative and inoperative position.

14. In a lasting machine, wipers and a shoe support, means mounting the wipers and support for relative movement, a first motor and a second motor respectively connected to the wipers and support to effect movement thereof, a first valve for controlling the flow of pressure fluid to the first motor, a second valve for controlling the flow of pressure fluid to the second motor, a handle, said first valve being operable by forward and rearward movement of the handle to advance and retract the wipers and said second valve being operable, by rotation of the handle, to

raise and lower the support, power operable means for,

returning the handle from a forward position to its rearmost position, thereby to retract the wipers, means on the handle operable without moving the handle to initiate operation of the power operable means, and means operable by movement of the power operable means to effect movement of the second valve, first in a direction to lower the support and then in a direction to raise it to its initial position.

15. In a lasting machine, wipers and a shoe support, means mounting the wipers and support for relative movement, a first motor and a second motor respectively connected to the wipers and support to effect movement thereof, a first valve for controlling the flow of pressure fluid to the first motor, a second valve for controlling the flow of pressure fluid to the second motor, a handle, said first valve being operable by forward and rearward movement of the handle to advance and retractthe wipers, and said second valve being operable by rotation of the handle to raise and lower the support, a cylinder containing a piston and a rod protruding from the cylinder, a third valve for controlling the flow of pressure fluid to said cylinder, an actuator on the handle operable to effect operation of the third valve to supply fluid pressure to the cylinder in a direction to move the rod rearwardly, a cam movable with the rod, and a switch operable by the cam to effect movement of the said second valve in a direction to lower the support and thereafter to effect movement in a direction to re-elevate the support.

16. In a lasting machine, wipers and a shoe support; said shoe support including a toe rest and'heel pin, means mounting the wipers and support for relative movement, a first motor and a second motor respectively connected to the wipers and support to effect movement thereof, a third motor connected to the heel pin for moving the pin to a locking position, a first valve and a second valve for respectively controlling the flow of pressure fluid to the first motor and the second motor, a handle, said first valve being operable by forward and rearward movement of the handle to advance and retract the wipers and said second valve being operable, by rotation of the handle, to raise and lower the support, a slide mounted for movement rearwardly and forwardly, and normally occupying a position forwardly of the foremost position of the handle, a fourth motor operable to effect rearward movement of the slide to engage and move the handle from a forward position to its rearmost position, a third valve actuatable to supply fluid to the third motor and the fourth motor in a direction to move the heel pin to locking position and to move the slide to its forward position, a fourth solenoid-operable valve to actuate the third valve, and a switch on the handle operable in one direction without moving the handle to energize the solenoid, and in the other direction to de-energize the solenoid.

17. Apparatus according to claim 16, wherein movement of the switch in a direction to de-energize the solenoid vents the heel pin motor and the slide motor.

18. Apparatus according to claim 16, wherein movement of the switch in the other direction vents the heel pin motor and the latter is spring-loaded so as to move the heel pin to an unlocking position.

19. In a toe lasting machine, wipers and a support, means mounting the wipers and the support for relative movement, fluid motors operably connected to the wipers and the support to effect their movement, a source of fluid pressure, means, for supplying fluid pressure from said source to the motors at a predetermined pressure, a handle operable by movement forwardly and rearwardly to move said first means in directions to move the wipers forwardly and rearwardly and by rotation to move said first-named means in a direction to raise and lower the support, second means operable to supply fluid pressure from said source to the fluid motor for the support at higher pressure, and third means operable by the rota- 10 tion of the handle to move the support to its highest position to actuate the second means to apply said higher pressure to the fluid motor for the support, said thirdnamed means being rendered inoperative when the handle is moved rearwardly to retract the wipers for the next operation.

20. In a toe lasting machine, wipers and a support, means mounting the wipers and support for relative movement, a first fluid motor and a second fluid motor respectively operably connected to the wipers and support to effect their movement, a source of pressure, a first valve and a second valve for respectively supplying pressure fluid from said source to the first and second fluid motor at a predetermined pressure, a handle operable by movement forwardly and rearwardly to move the first valve in directions to move the wiper forwardly and rearwardly and having a cam rotatable thereby to move the second valve in directions to move the support upand down, a lever having an end arranged to be engaged by the high point of the cam when the latter is rotated to elevate the support to its uppermost position, a switch operable by the leverwhen the latter is engaged by the cam, a third valve, and a solenoid operableby actuation. of the switch to open the third valve to admit fluid to the second motor at a higher pressure to bed the support against the underside of the wipers, said switch being rendered inoperable by movement of the handle to its rearmost position to retract the Wipers.

21. In a toe lasting machine, wipers and a support for supporting a shoe bottom-up, means mounting the wipe ers and support for relative movement, a first fluid motor and a second fluid'motor respectively operably connected to the wipers and the support to effect their movement, a source of pressure, means, including a first valve and a second valve respectively connected to the first motor and the second motor, for supplying pressure from said source to the first motor and the second motor at a predetermined pressure, a handle operable by movement forwardly and rearwardly to move the first valve in direc-' tions to actuate the first motor to move the wipers forwardly and rearwardly, and rotatable to move the second valve in directions to actuate the second motor to raise and lower the support, said handle including a cam having a high point, a lever having an end engageable by the cam on the handle only when the latter is moved forwardly to a position in which the wipers overlie the shoe bottom and the high point has engagement there'- with, a switch actuated by said lever when the latter is engaged by the cam on the handle, and a third, solenoid operated valve energizable by the switch to supply pressure from said source to the second motor at a higher pressure.

22. In a toe lasting machine, wipers and a support for supporting a last, having a shoe mounted thereon, bottom-up, means mounting the wipers and support for relative movement, a first fluid motor and a second fluid motor respectively operably connected to the wipers and to the support to effect their movement, a source of pressure, means including a first valve and a second valve for respectively supplying pressure from said source at a predetermined pressure to the first motor and the second motor, a handle operable by movement forwardly and rearwardly to move the first valve in directions to actuate the first motor to move the wipers forwardly and rearwardly, and rotatable to move the second valve in directions to actuate the second motor to move the support up and down, a cam on the handle rotatable therewith, said cam having a high point which coincides with the support at its maximum height, a lever situated in a position to be engaged by the cam only when the Wipers overlie the bottom of the shoe, and the support is elevated to its maximum height, said lever being unengaged while the wipers and support are being manipulated relative to each other to wipe the margin over the shoulder of the last, a third, solenoid-operated valve for admit- 1 l ting a higher pressure from the source to the second motor and a switch operable by the lever when the latter is engaged by the high point of the cam to effect energization of the third valve, to supply said higher pressure to the second motor to bed the shoe bottom against the underside of the wipers.

23. In a toe lasting machine, wiper means, a shoe support, means mounting the wiper means for movement forwardly and rearwardly, means mounting the support for movement in a direction to raise and lower the support, fluid pressure means for raising the support, a manually manipulable handle operable to cause the fluid pressure means to raise the support at a relatively low pressure thereby forcing the supported shoe against the wiper means, and means eflective when the handle has been manipulated to raise the supported shoe against the wiper means to apply a relatively high pressure against the support.

24. In a lasting machine: wiper means; a shoe support; means mounting the wiper means for forward and rearward movement; means mounting the shoe support for upward and downward movement; a first fluid operated -motor connected to the wiper means to effect its forward and rearward movement; a second fluid operated motor connected to the shoe support to effect its upward and downward movement; first fluid control means for supplying pressure fluid to the first motor and the second motor at a predetermined pressure; a handle, operable by movement forwardly and rearwardly to actuate the first motor to move the wiper means forwardly and rearwardly, and operable by rotation to actuate the second motor to raise and lower the support; second fluid control means operable to supply pressure fluid to said second motor at a higher pressure than said predetermined pressure; and means operable by the rotation of the handle to move the shoe support to its highest position to actuate said second fluid control means to supply said higher pressure to said second motor.

25. In a lasting machine: wiper means; a shoe support; means mounting the wiper means for forward and rearward movement; means mounting the shoe support for upward and downward movement; means connected to said wiper means to effect its forward and rearward movement; a fluid operated motor connected to the shoe support to effect its upward and downward movement; a fluid control means for supplying fluid to said motor at a predetermined pressure; a handle operable by rotation to actuate said motor to raise and lower the support; second fluid control means operable to supply fluid to said motor at a pressure higher than said predetermined pres sure; and means operable by the rotation of the handle to move the shoe support to its highest position to actuate said second fluid control means to supply said higher pressure to said fluid motor.

26. Apparatus for lasting the ends of shoes comprising: wiper means; a support for supporting a last having a shoe mounted thereon; first powered means operable to eflect movement of the wipers forwardly and rearwardly; second powered means operable to effect movement of the support upwardly and downwardly; a handle; first control means operable in response to forward and rearward movement of the handle to actuate the first powered means to move the wipers forwardly and rearwardly; second control means operable in response to rotation of the References Cited in the file of this patent UNITED STATES PATENTS.

Weisz June 2, 1959 Gilbride et al. Mar. 1, 1960 

